Sink basin



FIG. 1 is a perspective view of a first embodiment of a sink basin showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a perspective view of a second embodiment of a sink basin showing my new design;

FIG. 7 is a front elevational view of the embodiment of FIG. 6;

FIG. 8 is a top view thereof;

FIG. 9 is a left elevational view thereof; and,

FIG. 10 is a right elevational view thereof.

In the embodiment of FIGS. 1–5, the broken lines showing the bottom and rear portions are for illustrative purposes only and form no part of the claimed design, and, in the embodiment of FIGS. 6–10, the broken lines showing plumbing fixtures openings and the bottom and rear portions are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for sink basin, as shown and described. 